Mickey Hart (born September 11, 1943) Mickey Hart is best known for his nearly three decades as an integral part of an extraordinary expedition into the soul and spirit of music, disguised as the rock and roll band the Grateful Dead. As half of the percussion tandem known as the Rhythm Devils, Mickey and Bill Kreutzmann transcended the conventions of rock drumming. Their extended polyrhythmic excursions were highlights of Grateful Dead shows, introducing